{"id":"6bde131c-c420-463e-8382-0bc30e4a7f1b","shortId":"gcLVJF","kind":"x402","title":"Retrieve employee SSN data via x402 micropayment on Base network for $0.02 per request.","tagline":"Retrieve employee SSN data via x402 micropayment on Base network for $0.02 per request.","description":"This endpoint at lowpaymentfee.com returns employee Social Security Number (SSN) data for a specific employee record (employee ID 37) behind an x402 paywall. The endpoint accepts POST requests and returns JSON. Payment is settled in USDC on the Base network using the x402 \"exact\" scheme.\n\nThe x402 challenge advertises a maxAmountRequired of 20,000 base units of USDC (0x8335…2913 on Base, 6 decimals), which equals $0.02 per request. The provider's landing page confirms a flat $0.02/request pricing model across all their API endpoints, with no API keys, no rate limits, and instant access. The endpoint was live at probe time, returning a valid 402 challenge.\n\nThis endpoint is part of a broader suite of APIs offered by lowpaymentfee.com spanning data analytics, AI/ML inference, finance, and utility services — all priced at $0.02 per call. However, the specific endpoint under listing here deals with sensitive personally identifiable information (employee SSN), which raises significant regulatory and ethical concerns. No documentation beyond the landing page was available; the docs, API, pricing, and README pages all returned only a \"Connect wallet\" prompt with no substantive content.","tags":[],"capabilities":["x402-payment","usdc-base","employee-data","ssn-lookup","json-response","per-call-micropayment"],"categories":["data","pii"],"synonyms":["social security number API","employee SSN lookup","PII endpoint","x402 employee data","Base USDC micropayment API","SSN retrieval"],"warnings":["Endpoint returns employee SSN — highly sensitive PII. Verify legal compliance (CCPA, GDPR, SOC 2, etc.) before use.","No API documentation available; docs, pricing, and README pages return only 'Connect wallet' with no content.","No response schema or example responses provided — output format is unknown.","Single hardcoded employee ID (37) in the URL; unclear if other employee IDs are supported.","No visible authentication, authorization, or access control beyond payment — anyone who pays can retrieve SSN data."],"endpointUrl":"https://lowpaymentfee.com/api/v1/employees/37/ssn","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/employees/37/ssn","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (valid 402 challenge), but there is no OpenAPI schema, no response examples, no request body documentation, and the docs/pricing/README pages are empty stubs. The endpoint serves highly sensitive PII (SSN) with no visible compliance or authorization framework, which is a major red 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'0.02':12,26,95,106,162 '000':82 '0x8335':87 '20':81 '2913':88 '37':47 '402':135 '6':91 'Base USDC micropayment API' 'PII endpoint' 'SSN retrieval' 'accept':54 'access':124 'across':110 'advertis':77 'ai/ml':153 'analyt':152 'api':113,117,146,197 'avail':194 'base':9,23,67,83,90 'behind':48 'beyond':189 'broader':143 'call':164 'challeng':76,136 'concern':186 'confirm':103 'connect':206 'content':212 'data':4,18,39,151 'deal':172 'decim':92 'doc':196 'document':188 'employe':2,16,34,43,45,178 'employee SSN lookup' 'employee-data' 'endpoint':30,53,114,126,138,168 'equal':94 'ethic':185 'exact':72 'financ':155 'flat':105 'howev':165 'id':46 'identifi':176 'infer':154 'inform':177 'instant':123 'json':59 'json-response' 'key':118 'land':101,191 'limit':121 'list':170 'live':128 'lowpaymentfee.com':32,149 'maxamountrequir':79 'micropay':7,21 'model':109 'network':10,24,68 'number':37 'offer':147 'page':102,192,201 'part':140 'payment':60 'paywal':51 'per':13,27,96,163 'per-call-micropayment' 'person':175 'post':55 'price':108,160,198 'probe':130 'prompt':208 'provid':99 'rais':181 'rate':120 'readm':200 'record':44 'regulatori':183 'request':14,28,56,97 'retriev':1,15 'return':33,58,132,203 'scheme':73 'secur':36 'sensit':174 'servic':158 'settl':62 'signific':182 'social':35 'social security number API' 'span':150 'specif':42,167 'ssn':3,17,38,179 'ssn-lookup' 'substant':211 'suit':144 'time':131 'unit':84 'usdc':64,86 'usdc-base' 'use':69 'util':157 'valid':134 'via':5,19 'wallet':207 'x402':6,20,50,71,75 'x402 employee data' 'x402-payment'","prices":[{"id":"8a2819f4-2c84-424b-8313-9fd4d9a91e91","listingId":"6bde131c-c420-463e-8382-0bc30e4a7f1b","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"20000","chain":"base","payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/employees/37/ssn","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-21T18:32:16.507Z"}],"sources":[{"listingId":"6bde131c-c420-463e-8382-0bc30e4a7f1b","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/employees/37/ssn","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-21T18:32:16.507Z","lastSeenAt":"2026-04-24T13:32:58.825Z"}],"details":{"listingId":"6bde131c-c420-463e-8382-0bc30e4a7f1b","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/employees/37/ssn \\\n  -H \"X-PAYMENT: <x402-payment-token>\" \\\n  -H \"Content-Type: application/json\"","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 challenge with maxAmountRequired of 20000 base units of USDC on Base network.","source_url":"https://lowpaymentfee.com/api/v1/employees/37/ssn"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base.","source_url":"https://lowpaymentfee.com/api/v1/employees/37/ssn"},{"claim":"All APIs priced at $0.02 per request with no API keys, no rate limits, and instant access.","source_url":"https://lowpaymentfee.com"},{"claim":"Docs, pricing, API, and README pages show only 'Connect wallet' with no substantive documentation.","source_url":"https://lowpaymentfee.com/docs"}],"useCases":["Retrieving SSN for employee record 37 via automated payment","Integrating employee PII lookup into payroll or HR workflows","Demonstrating x402 micropayment protocol usage"],"bestFor":["Developers exploring x402 protocol integrations","Automated agents needing per-call paid data access on Base"],"notFor":["Production PII handling without verified compliance (GDPR, CCPA, SOC 2)","Bulk employee data retrieval (single-record endpoint)","Users who need detailed API documentation or schema guarantees"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:13:15.096Z"},"updatedAt":"2026-04-24T13:32:58.825Z"}}